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Reka Flash 3

Reka AI · 2025-03-10 · 20.9B parameters

Reka Flash 3 is Reka AI's 21B open-weight general-purpose reasoning model trained from scratch, released in March 2025 with full model weights available on Hugging Face. It supports chat, coding, instruction following, and function calling, and incorporates a "budget forcing" mechanism via special reasoning tags that allows users to control the depth of the model's thinking process. Reka Flash 3 achieves performance competitive with much larger open models while remaining efficient enough for low-latency deployment.

Benchmark scores

BenchmarkScore
AA-LCR0.0
AA-Omniscience Index-64.7
AIME 202533.7
Artificial Analysis Intelligence Index4.1
Artificial Analysis Omniscience Accuracy13.4
Artificial Analysis Omniscience Hallucination Rate90.1
Artificial Analysis Openness Index38.9
BALROG29.2
Capability127.1
Creative Writing v3 Elo1242
Creative Writing v3 Rubric Score13.6
CritPt0.0
GPQA Diamond52.9
Humanity's Last Exam (Text-Only)5.1
IFBench (Artificial Analysis)30.4
LiveCodeBench (Artificial Analysis)43.5
Longform Creative Writing41.2
MATH-500 (Artificial Analysis source)89.3
MMLU Pro66.9
SciCode (Artificial Analysis)26.7
SnakeBench Average Apples0.5
SnakeBench Best Apples2.0
SnakeBench Rating11.4
SnakeBench Total Apples5.0
SnakeBench Win Rate36.4
Terminal-Bench Hard0.0
τ²-bench (Telecom)0.0
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